Ajax maintained their lead at the top of the table after a thrilling 3-2 win over FC Groningen at the Amsterdam ArenA.
Ryan Babel gave Ajax the lead on 51 minutes, but Evgeny Levchenko drew Groningen level five minutes later from the penalty spot.
Luis Suarez stunned the hosts with Groningen's second on the hour mark, but Babel levelled matters with his second on 74 minutes.
Urby Emanuelson grabbed the winner for Ajax ten minutes from time.
AZ Alkmaar remain a point behind Ajax after a 2-0 victory at bottom of the table Sparta Rotterdam.
Second half goals from Gretar Steinsson (55), Danny Koevermans (79) were enough to give AZ the spoils.
NEC Nijmegen picked up a valuable three points after a 2-0 win over NAC Breda.
Romano Denneboom (17,21) was the hero for NEC with both goals to give them only their second win of the campaign.
Willem II remain in the bottom three after losing 1-0 at Vitesse Arnhem.
Onur Kaya scored the only goal of the game right on the stroke of half time.
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